Modeling with a large class of unimodal multivariate distributions

M. S. Paez and S. G. Walker

Journal of Applied Statistics, 2018, vol. 45, issue 10, 1823-1845

Abstract: In this paper we introduce a new class of multivariate unimodal distributions, motivated by Khintchine's representation for unimodal densities on the real line. We start by introducing a new class of unimodal distributions which can then be naturally extended to higher dimensions, using the multivariate Gaussian copula. Under both univariate and multivariate settings, we provide MCMC algorithms to perform inference about the model parameters and predictive densities. The methodology is illustrated with univariate and bivariate examples, and with variables taken from a real data set.

Date: 2018
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DOI: 10.1080/02664763.2017.1396296

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